import{EventEmitter}from 'events';
const myEmitter=new EventEmitter();
function greetHandler(name){
    console.log('Hello'+name);
}
function goodbyeHandler(name){
    console.log('Goodbye'+name);
}
myEmitter.on('greet',greetHandler);
myEmitter.on('goodbye',goodbyeHandler);
myEmitter.emit('greet','John');
myEmitter.emit('goodbye','John');
myEmitter.on('error',(err)=>{
    console.log('An Error Occured:',err);
});
myEmitter.emit('error',new Error('Something went wrong'));